CNBC has put together an article that looks at the Grand Theft Auto series, and what seems to be a decline in popularity. I think that notion is a bit silly, but at least CNBC does look at the rise of casual and expanded audience gaming as a possible reason why GTA doesn't seem to pack the punch it once did. GTA is still a very popular seriese, and it will be for years to come. People just have to realize that there are tons of different gamer types out there, and not all of them want GTA.

Article here